Dr. Grinspoon

The seed was soaked for 15 hours in 100 mL deionized water and 4 drops H2O2 100 vol. Then it was transferred to moist paper towels in a closed plastic container for 1 day until main root appeared long enough (1/3 cm) to be transferred to a small pot (1 L) . The seed was extremely carefully placed in 1 L pot with coco/perlite (coco >70%) and sprouted 3.5 days after. Coco was reutilized from previous crops and was previously flushed with 2 L of dechlorinated tap water (150 ppm). The water also contained CalMax (1 mL/L ) and 0.3 mL/L Roots Excelurator and pH was adjusted to 5.90 before flushing the substrate. The seed was put in a little hole about 1 cm below the surface and gently covered with coco. Day 3: the seedling is doing fine, the two tiny real leaves are a little bigger to my eye. She's still so tiny overall! She stands erect and the stem is ca. 2,5 cm long. Day 4: Growth continues at a uniform rate. Since I've read that she is a very fastidious plant, I'll try to be very orderly regarding her feedings. I'll be happy if she doesn't suffer from any deficiency for the time we'll be together. If my plants are happy, I'm happy ;) I'll start with Start fertilizer from Flower Power Fertilizers (Basic Line), a brand that I've been dealing with for a few years by now and luckily the EC informed for these fertilizer include regular tapwater😀 I'll try to stay in the 256-320 ppm for the first two weeks. CalMax is 95 ppm of the total amount ppm's (according to my own measurement) and if I substract these to the lower end of the interval it leaves 0,13 g/L Start fertilizer solution to prepare. Regarding pH I always stay a bit below 6.00, generally from 5.60-5.90 (I use HCl solution 2M to adjust pH) To sum up: Day 4 First fertigation 1.3 mL CalMAx (Grotek NPK 2-0-0) and 0,13 g/L Flower Power “Start” Fertilizer ( NPK 11-6-30) pH sol 5.95 Run-off volume 20 % TDS CalMax 1.33 mL/L -> 95 ppm TDS solution inflow -> 225 ppm TDS run-off -> 209 ppm TDS dechlor. tapwater -> 130 ppm Tsol=15.5 ºC Day 5 fertigation 1.3 mL/L CalMax, 0.13 g/L Start fert. (inflow 378 ppm, run-off 300 ppm), pH 5.95) Day 6 I took her out of the grow room for a picture, I noticed that under the grow lights she looks yellowish on the leaves. I don't see elongation of the stem but a slight increase in the size of the leaves' blades. She doesn't seem to try to reach out for lights. Fertigation inflow 351 ppm run off 334 ppm same solution concentration as yesterday, pH 5.90. Day 7, first week ended. Fertigation inflow 354 ppm, run-off 341 ppm, I keep the solutions' concentration the same as the previous days.